:root {
  --paper: #f6f1e7;
  --card: #fbf8f2;
  --ink: #1f2a2e;
  --muted: #5b6b70;
  --accent: #1d5c63;
  --accent-soft: #e3eeec;
  --border: #e2d9c8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  color: var(--accent);
}

nav.site a {
  margin-left: 18px;
  font-size: 15px;
  text-decoration: none;
  color: var(--muted);
}

nav.site a:hover {
  color: var(--accent);
}

nav.site a.signin {
  color: #fff;
  background: var(--accent);
  padding: 8px 14px;
  border-radius: 8px;
}

main {
  padding: 48px 0 64px;
}

h1 {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 16px;
}

h2 {
  font-size: 22px;
  margin: 36px 0 10px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 6px;
}

.lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 640px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px;
  margin-top: 24px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.grid .card {
  margin-top: 0;
}

.grid .card h3 {
  margin-top: 0;
  color: var(--accent);
}

.contact dt {
  font-weight: 600;
  margin-top: 10px;
}

.contact dd {
  margin: 0;
}

.note {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 15px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
}

footer.site {
  border-top: 1px solid var(--border);
  background: var(--card);
  font-size: 14px;
  color: var(--muted);
}

footer.site .wrap {
  padding-top: 22px;
  padding-bottom: 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

footer.site a {
  color: var(--muted);
  margin-left: 14px;
}

@media (max-width: 600px) {
  header.site .wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  nav.site a {
    margin-left: 0;
    margin-right: 14px;
  }

  h1 {
    font-size: 28px;
  }
}